What Size Group does

Size Group is a UK-based, founder-led luxury residential property services company founded in 2009 by Darren Size as Sizebreed Construction. It serves ultra-high-net-worth private clients with luxury residences in London's super-prime postcodes (Kensington Palace Gardens, Mayfair, Belgrave Square), the English countryside, and select overseas locations, delivering construction, specialist crafts, and ongoing property care through three integrated divisions. The Construction division operates four units — London Homes, Country Houses, Structures (complex engineering including basements, piling, underpinning, retained facades), and Special Projects — while the Specialist Crafts division brings in-house capability in cabinetmaking (Smith & Brown), handcrafted flooring (Paddy Turner), fine furniture (Asplin Whiteley, Tim Gosling), master decorating (Aquarius), and bespoke luxury finishes (Radford Studios). The Maintenance division provides Property Care in London and Estate Management for country estates, including Planned Preventative Maintenance with 24/7 emergency on-call service.

The company's business model is built on negotiated, custom-quoted project contracts (cost-plus, Design & Build, or two-stage negotiated procurement) for bespoke construction work, complemented by recurring managed-services revenue from PPM contracts and estate management. Pricing is not publicly disclosed and varies by property and scope. Sales are conducted via direct enterprise engagement with private clients and their designers, with no public marketing funnel; new business is sourced primarily through word-of-mouth referrals and multi-property, multi-decade client relationships. Headcount has grown from 0 to 274 employees (2009-2024), almost entirely through acquisition of specialist craft businesses rather than external investment — no PE or institutional backing is evidenced. The company remains privately held, founder-controlled, and operates from London headquarters with regional offices in Henley, Whitby (manufacturing), Hampshire (manufacturing), and Beaconsfield.

Name

Size Group

Legal name

Size Group Limited

Website

https://size-group.co.uk

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

51–100 employees

Short description

Size Group is a UK founder-led luxury residential property services firm delivering construction, specialist crafts (cabinetmaking, flooring, furniture, decorating), and ongoing maintenance for ultra-high-net-worth private clients with super-prime homes in London, the English countryside, and overseas.

Ownership category

akta.pro rank

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices5 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales, Others

Revenue model

1. Construction Services: Project-based construction services including new builds, extensions, refurbishments, and structural works for luxury residential properties. Revenue is generated through negotiated cost-plus contracts or Design & Build arrangements. Projects range from small renovations to large-scale country estate developments.
2. Specialist Crafts: Bespoke crafts services including cabinetmaking, handcrafted flooring, fine furniture, and luxury decorating. Provided both as standalone services and integrated with construction projects.
3. Property Care & Maintenance: Ongoing property management services including Planned Preventative Maintenance (PPM) contracts and reactive maintenance for luxury residences. PPM clients receive 24/7 emergency on-call service.
4. Estate Management: Comprehensive estate management services for country estates including sporting pursuits support, grounds maintenance, and property care.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

Size Group provides luxury residential construction, specialist crafts, and ongoing property maintenance services to ultra-high-net-worth private clients across London, the English countryside, and select overseas locations. The integrated offering spans new builds, extensions, refurbishments, basements and structural works, bespoke cabinetry, handcrafted flooring, fine furniture, decorating, and 24/7 property care and estate management.

Product overview

Size Group is a unique collection of companies providing luxury property services through three main divisions: Construction (London Homes, Country Houses, Structures, and Special Projects divisions), Specialist Crafts (including Smith & Brown Cabinetmakers, Paddy Turner Handcrafted Flooring, Asplin Whiteley Makers of Fine Furniture, Aquarius Master Decorators, and Radford Studios Bespoke Luxury Finishes), and Maintenance (Property Care and Estate Management services). The company delivers construction, specialist crafts, and maintenance services to private clients with luxury properties in London, the English countryside, and overseas.

Differentiator

Problem solved

Functional benefit

Brands

• Construction: Main construction division delivering luxury residential projects including London Homes, Country Houses, Structures, and Special Projects
• Specialist Crafts
• Maintenance
• Property Care
• Estate Management

Products and services

• London Homes Delivers new builds, extensions, and whole house refurbishments in London's super prime areas including Kensington Palace Gardens, Mayfair, and Belgrave Square for ultra-high-net-worth private clients.
• Country Houses Successfully delivers luxury residences in the Southern English Countryside, including new builds, refurbishments, estate works, and restoration of listed buildings for private estate owners.
• Structures Dedicated structures division carrying out complex engineering and structural works including new basements, retained facades, piling, underpinning, and temporary works for luxury residences.
• Special Projects Bespoke services for unique, high-quality projects that are smaller and more fast-tracked than mainstream construction projects, including refurbishments, extensions, and boutique projects for luxury residences.
• Smith & Brown Cabinetmakers Specialist cabinet making company providing bespoke, highest quality cabinetry for luxury homes, operating as a wholly-owned subsidiary of Size Group.
• Paddy Turner Handcrafted Flooring Specialist handcrafted flooring company providing bespoke wood flooring installations for luxury residences, operating as a wholly-owned subsidiary of Size Group.
• Asplin Whiteley Makers of Fine Furniture Artisan furniture makers providing the highest quality specialist crafts and fine furniture for luxury homes, operating as a wholly-owned subsidiary of Size Group.
• Aquarius Master Decorators Master decorators providing specialist decoration services for luxury homes, operating as a wholly-owned subsidiary of Size Group.
• Radford Studios Bespoke Luxury Finishes Bespoke luxury finishes specialists providing high-end finishing services for luxury residences, operating as a wholly-owned subsidiary of Size Group.
• Tim Gosling Director and specialist crafts subsidiary focused on fine furniture and specialist crafts for luxury homes within Size Group's crafts division.
• Property Care Provides property management services, planned and reactive maintenance to private clients with luxury residences in London, including 24/7 on-call emergency service.
• Estate Management Provides property management services, planned and reactive maintenance to private clients with country estates in the English countryside, including sporting pursuits support and 24/7 on-call service.

Quantifiable outcome

• Client relationships span several properties over many years, indicating high satisfaction and retention
• +1 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

23 partnerships are on record, tiered core and minor.

• Adam ArchitecturecoreStrategic or Co-development PartnerArchitectural practice for Surrey estate project including two new stone wings, complete refurbishment, and landscape works. Collaboration on design and execution of 600-acre country estate project.
• Richard Meier & PartnerscoreStrategic or Co-development PartnerInternationally renowned architectural firm that designed the Oxfordshire private house project - a contemporary new build replacing an old farmhouse.
• Berman Guedes StrettiminorStrategic or Co-development PartnerLocal architect for Oxfordshire project working alongside Richard Meier & Partners.
• Sibyl Colefax & John FowlercoreStrategic or Co-development PartnerPrestigious interior design practice providing interior design services for Surrey estate project.
• Knight FrankcoreStrategic or Co-development PartnerProject management for Surrey estate project, providing PM services alongside construction delivery.
• ColliersminorStrategic or Co-development PartnerQuantity surveying services for Surrey estate project.
• Colvin & MoggridgecoreStrategic or Co-development PartnerLandscape architecture for Surrey estate project including lake dredging, walled garden restoration, and golf course design.
• SWPminorImplementation/ SI/ Consulting PartnerServices engineering for Surrey estate project.
• Pilbrow & PartnerscoreStrategic or Co-development PartnerArchitectural practice for Hove project - contemporary seafront house design.
• Formation ArchitectsminorStrategic or Co-development PartnerExecutive architect for Hove project.
• Studio AshbycoreStrategic or Co-development PartnerInterior design practice for Hove project providing interiors services.
• Atelier TenminorStrategic or Co-development PartnerServices engineering for Hove project.
• Ben PentreathcoreStrategic or Co-development PartnerArchitect for Basingstoke project - grade 2 listed building refurbishment with new limestone wing extension.
• David Linley & CocoreStrategic or Co-development PartnerPrestigious interior design practice for Basingstoke project providing interiors.
• Price & MyerscoreStrategic or Co-development PartnerStructural engineering for Basingstoke project including basement works.
• Webster HartminorStrategic or Co-development PartnerProject management for Basingstoke estate project.
• Price & MyerscoreStrategic or Co-development PartnerStructural engineering for Oxfordshire project.
• CBG ConsultantsminorStrategic or Co-development PartnerBuilding services engineering for Oxfordshire project.
• CDMA LLPminorStrategic or Co-development PartnerProject management for Oxfordshire project.
• Gardiner & TheobaldminorStrategic or Co-development PartnerQuantity surveying for Oxfordshire project.
• Charlton BrowncoreStrategic or Co-development PartnerArchitecture and interior design for North London refurbishment project.
• Lucking & ClarkminorStrategic or Co-development PartnerStructural engineering for North London project.
• Wheeler GroupminorStrategic or Co-development PartnerQuantity surveying for North London project.

Scale indicators4 records

Recent moves11 records

Expansion highlights5 records

Direct peers

• Linley (David Linley): Luxury bespoke furniture and interior brand serving UHNW clients in the UK. Direct peer to Asplin Whiteley and the broader Size Group specialist crafts division, with overlapping end customers and project-level collaboration.
• Octagon Developments: Specialist developer of large luxury private residences and country estates in the Home Counties. Direct peer in delivering bespoke high-value estates for UHNW clients with integrated design, build and landscaping services.
• Halstock Furniture: Bespoke cabinetmaker serving luxury residential projects in the UK. Directly comparable to Smith & Brown Cabinetmakers within the Size Group specialist crafts division.
• Knight Harwood: UK contractor specialising in high-end residential and commercial projects for private clients. Closely comparable to Size Group in client segment, bespoke delivery model and project scale, particularly across London prime and country houses.
• Smallbone of Devizes: UK maker of luxury bespoke cabinetry, kitchens and joinery for high-end residences. Comparable to Size Group's specialist crafts offering, including Smith & Brown and Asplin Whiteley, on craftsmanship-led, project-based luxury home work.
• Mount Anvil: London-focused developer-builder of luxury residential schemes. Overlaps with Size Group on super-prime London delivery, complex build programmes and direct engagement with UHNW buyers, although Mount Anvil typically acts as developer rather than pure contractor.
• Kershaw Contracting: Independent UK construction firm delivering bespoke residential and heritage projects. Comparable to Size Group in the high-end private client segment, particularly on listed-building refurbishments and complex structural work.

Broad incumbents

• Berkeley Group: Large UK housebuilder whose St George division operates in London's super-prime residential market. Serves overlapping UHNW client demand but at materially larger scale and as a developer-sales business rather than a bespoke contractor.
• Savills: Global real estate services firm with a significant UK property management practice. Comparable to Size Group's Property Care and Estate Management divisions on the recurring-services side, but operates as a much broader real estate platform.
• Knight Frank: International real estate consultancy active in UK prime residential management, valuation and project management. Comparable to Size Group on the property management/PM services offered alongside construction, while also acting as a Size Group partner on the Surrey estate.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/size-group
• Instagraminstagram.com/size_group_

Revenue estimate

Valuation estimate

Number of profiles

Profiles27 records

Subsidiaries6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Size Group